The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 21, 2017
Filed:
Sep. 30, 2014
Synaptics Japan Gk, Tokyo, JP;
Toshiyuki Hikichi, Tokyo, JP;
Yasuhito Kurokawa, Tokyo, JP;
Shutaro Ichikawa, Tokyo, JP;
Masashi Takata, Tokyo, JP;
Synaptics Japan GK, Tokyo, JP;
Abstract
The display device includes display drivers including first and second ones operable to output, based on display data, gradation signals to source lines of display panel regions. The display device is arranged to be able to suppress the variation in output voltage between display drivers while minimizing the increases in chip area of the display drivers and in wiring area of a display panel and keeping high noise resistance. Each display driver can generate gray scale reference voltages for producing gradation signals corresponding to display data. The first display driver can sequentially transmit gray scale reference voltages generated by itself to the second display driver. Based on the transmitted gray scale reference voltages, the second display driver makes the first display driver execute calibration for decreasing the absolute value of difference between gray scale reference voltages generated by the first and second display drivers, or executes the calibration by itself.